CAJ | 학술논문

以电渣重熔准稳态过程的温度场为初始条件,采用 ANSYS 与 CFX 商业软件相结合的方法,研究分析了电渣重熔补缩过程中的温度分布,考察了无补缩操作、直线降流方式和阶梯降流方式三种条件下电渣锭热节的最终位置。结果表明：在无补缩操作条件下,电渣锭热节附近糊状区离渣-金界面的最远距离为162 mm,直线降流方式距离为130 mm,大阶梯降流方式距离为70 mm,而小阶梯降流方式的热节位置几乎保持不变。因此,阶梯降流方式更有利于1 Mn18Cr18N 护环钢电渣重熔补缩工艺的顺利进行。
이전사중용준은태과정적온도장위초시조건,채용 ANSYS 여 CFX 상업연건상결합적방법,연구분석료전사중용보축과정중적온도분포,고찰료무보축조작、직선강류방식화계제강류방식삼충조건하전사정열절적최종위치。결과표명：재무보축조작조건하,전사정열절부근호상구리사-금계면적최원거리위162 mm,직선강류방식거리위130 mm,대계제강류방식거리위70 mm,이소계제강류방식적열절위치궤호보지불변。인차,계제강류방식경유리우1 Mn18Cr18N 호배강전사중용보축공예적순리진행。
The temperature field at quasi steady state of electro slag remelting (ESR)Was taken as initial condition in the simulation of temperature distribution during ESR in virtue of ANSYS and CFX.Terminal positions of hot spots in the ingot under three feeding conditions (i.e.no feeding,linear current-drop and stair-step current-drop during feeding)Were investigated.The results shoWed that the largest distance of mushy zone around the hot spot Were 162 mm,130 mm and 70 mm aWay from slag-metal interface,When no feeding,linear current-drop and rapid stair-step current-drop Were carried out during ESR feeding process,respectively.The hot spot remained changeless under sloWstair-step current-drop.Thus,stair-step current-drop is beneficial for feeding process during ESR of 1 Mn18Cr18N.